Question

There are two cells, one with OER as 2.5 and other as 7. Which cell is more sensitive to radiation?

1)The cell with OER 2.5
2)The Cell with OER 7
3)Both the cells
4)Insufficient data

Answer 1

2)The Cell with OER 7

Step-by-step explanation:

OER is the acronym for Oxygen Enhancement Ratio. It is the measure of the enhancement of the effect of ionizing radiation due to the presence of oxygen. The ionization effect can be detrimental or therapeutic (use in cancer treatment). OER is the ratio of radiation dose during the lack of oxygen (hypoxia), to the dosage in the presence of oxygen (air is used as a reference). From the definition, one can see that the higher the OER the higher the sensitivity of the cell.